(280) Philia
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Asteroid (280) Philia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 2.943 AU |
| eccentricity | 0.106 |
| Perihelion - aphelion | 2.63 AU - 3.256 AU |
| Inclination of the orbit plane | 7.5 ° |
| Length of the ascending node | 9.9 ° |
| Argument of the periapsis | 89.2 ° |
| Time of passage of the perihelion | October 11, 2010 |
| Sidereal period | 5 a 18 d |
| Mean orbital velocity | 17.3 km / s |
| Physical Properties | |
| Medium diameter | 46 km |
| Albedo | 0.0444 |
| Rotation period | 64 h 0 min |
| Absolute brightness | 10.7 mag |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | October 29, 1888 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(280) Philia is an asteroid of the main asteroid belt , which on 29 October 1888 by Johann Palisa the Observatory of Wien was discovered.
Philia moves from 2.6311 ( perihelion ) to 3.2578 ( aphelion ) astronomical units around the sun in 5.0526 years . The orbit is 7.4461 ° inclined to the ecliptic , the orbital eccentricity is 0.1064.
Philia has a mean diameter of around 46 kilometers. It has a dark surface with an albedo of 0.029.